Inventor · Sevran, FR

Herve Borowiak

10Patents
5h-index
5Co-inventors
51Inventor score

Filing activity: Apr 27, 1988 → Oct 26, 1995

Most-cited inventions

PatentTitleAreaCited byStatus
US4865619A Use, as a coupler, of 2,4-diamino-1,3-dimethoxybenzene or one of its salts, in combination with oxidation dye precursors, for dyeing human hair, hair dyeing composition containing the said coupler and process for preparing the said coupler Human Necessities 13 Expired
US4960432A Meta-phenylenediamines, process for preparation thereof, intermediate compounds and use of these meta-phenylenediamines as couplers for the oxidation dyeing of keratinous fibres and especially human hair Human Necessities 10 Expired
US4865618A New chloro-meta-phenylenediamines, their use as couplers in the oxidation dyeing of keratinous fibres, dyeing compositions for hair containing these compounds and dyeing process using the said Human Necessities 8 Expired
US5468472A Topical process for lightening the skin or treating pigmental blemishes using a composition containing 4-thioresorcin derivatives Human Necessities 7 Expired
US5002585A Trialkoxy-substituted meta-phenylenediamines, a process for their preparation, and their use as couplers for the oxidation dyeing of keratinous fibres and in particular of human hair Chemistry; Metallurgy 5 Expired
US5026401A Dyeing compositions for kerating fibres based on nitroanilines and nitroanilines for use therein Chemistry; Metallurgy 4 Expired
US4891045A 2,4-Diamino-1,3,5-trimethoxybenzene, process for its preparation and its use as a coupler in oxidation dyes for keratinous fibres Human Necessities 3 Expired
US5015772A Meta-phenylenediamines, process for preparation thereof, intermediate compounds and use of these meta-phenylenediamines as couplers for the oxidation dyeing of keratinous fibres and especially human hair Human Necessities 1 Expired
US5578735A Process for the preparation of indole compounds from N-protected indolines Chemistry; Metallurgy 0 Expired
USRE34300E Chloro-meta-phenylenediamines, their use as couplers in the oxidation dyeing of keratinous fibres, dyeing compositions for hair containing these compounds and dyeing process using the said compositions General 0 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.